Packing material



106. COMPUSI l IUNS,

COATING PLASTIC. g

Pasta J5. 2e, 19ze.

UNITED STATES zall'i'f PATENT OFFICE.

PACKING MATERIAL.

No Drawing.

'1 '0 all whom it may concern:

Be it known that I, MADs POULSEN EB- nasaN, subject of the King of Denmark, residing at Frederiksberg, near Copenhagen,

5 Denmark, have invented certain new and useful Improvements in Packing Materials, of which the following is a specification.

The object of the present invention is to provide a plastic, nonresilient packing material, which does not change its packing properties under the influence of pressure, heat, moisture or the atmosphere and which is adapted to fiform tiWI' lghgtwggpl tupefis. Mnges, ttin s or 0t 18! mec anica men] )ers, without tfie necessity of using any solid packing material such as leather, gum, hemp, paper or the like. The material forming the object of the present invention consists in a mixture of a vegetable or animal 90 fat or oil, alkali, graphite, chalk, alkali- .carbonates, starch, sugar and water-glass, which materials are mixed together to form a mass having the consistence of a paste or salve, such as butter or putty. If desired a suitable colouring agent such as pine-soot may be added to the mixture.

The different ingredients of which the present packing material is composed may e used in any suitable proportions.

A material of the present kind may for instance be prepared in the following manner.

1000 grams of a fatt material such as animal fat train-oil hem -oil turm -o1l resin or the IIEG are W WlIll gausgic fioiaisigifi or sgdiu o orm a smoo pu p, an grams 0 waterglass and 150 grams of starch mixed W1 1 a so u- -r tion of otassium ar onate or odium car- 40 bonatg and a smalI amount, I or instance Application filed March 10, 1925. Serial No. 14,564.

20l00 grams of so ar is added to the pulp during or after e saponification.

100 grams of the mixture thus formed are I mixed with grams of ra bite and 20 grams of c alk to form a a consistence 0 utter or putty. If desired a small amount of a colouring material, for instance 10 grams of ine-soot may be added to the mass.

i p W The packing material thus formed s 50 f 4 smeared in a smooth thin layer upon the surfaces to be packed, for instance u on the screw threads on a tube designe to be screwed into a fitting, or upon the faces of two flanges designed to be connected tightly together, and the parts are then fastened tightly to ether without requiring the use of any ad itional packing of any character.

If used on steam tubes and the like, the present material will stifi'en under the influence of the heat but will not lose its packing property.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. Plastic, non-res' 'ent packing material, comprising a saponi (1 fatty substance, vsater-glass, starch, an alkali carbonate, graphite and chalk.

2. A process of making a plastic, nonresilient packing material, comprising the steps of saponifying a fatty substance with an alkali; adding to the soap thereby formed a mixture of water-glass, starch, an alkali carbonate and sugar; and mixin graphite and chalk with the resultant pro not.

In testimony whereof I aflix my signature.

MADS PQULSEN 'EBBESEN.

aving the 45 

